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Zhu W, Oteiza PI. NADPH oxidase 1: A target in the capacity of dimeric ECG and EGCG procyanidins to inhibit colorectal cancer cell invasion. Redox Biol 2023; 65:102827. [PMID: 37516013 PMCID: PMC10410180 DOI: 10.1016/j.redox.2023.102827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/20/2023] [Accepted: 07/21/2023] [Indexed: 07/31/2023] Open
Abstract
Colorectal cancer (CRC) is prevalent worldwide. Dietary consumption of procyanidins has been linked to a reduced risk of developing CRC. The epidermal growth factor (EGF) receptor (EGFR) signaling pathway is frequently dysregulated in CRC. Our earlier research showed that the procyanidin dimers of epicatechin gallate (ECG) and epigallocatechin gallate (EGCG), through their interaction with lipid rafts, inhibit the EGFR signaling pathway and decrease CRC cell growth. The process of cancer cell invasion and metastasis involves matrix metalloproteinases (MMPs), which are partially EGFR-regulated. This study investigated whether ECG and EGCG dimers can inhibit EGF-induced CRC cell invasion by suppressing the redox-regulated activation of the EGFR/MMPs pathway. Both dimers mitigated EGF-induced cell invasion and the associated increase of MMP-2/9 expression and activity in different CRC cell lines. In Caco-2 cells, both dimers inhibited the activation of the EGFR and downstream of NF-κB, ERK1/2 and Akt, which was associated with decreased MMP-2/9 transcription. EGF induced a rapid NOX1-dependent oxidant increase, which was diminished by both ECG and EGCG dimers and NOX inhibitors (apocynin, Vas-2870, DPI). Both dimers inhibited NOX1 gene expression, as well as NOX1 activity with evidence of direct binding to NOX1. Both dimers, all NOX chemical inhibitors and NOX1 silencing inhibited EGF-mediated activation of the EGFR signaling pathway and the increased MMP-2/9 mRNA levels and activity. Pointing to the relevance of NOX1 on ECG and EGCG dimer effects on CRC invasiveness, silencing of NOX1 also inhibited EGF-stimulated Caco-2 cell invasion. In summary, ECG and EGCG dimers can act inhibiting CRC cell invasion/metastasis both, by downregulating MMP-2 and MMP-9 expression via a NOX1/EGFR-dependent mechanism, and through a direct inhibitory effect on MMPs enzyme activity.
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Affiliation(s)
- Wei Zhu
- Department of Nutrition, University of California, Davis, CA, USA
| | - Patricia I Oteiza
- Department of Nutrition, University of California, Davis, CA, USA; Department of Environmental Toxicology, University of California, Davis, CA, USA.
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Dechsupa N, Khamto N, Chawapun P, Siriphong S, Innuan P, Suwan A, Luangsuep T, Photilimthana N, Maita W, Thanacharttanatchaya R, Sangthong P, Meepowpan P, Udomtanakunchai C, Kantapan J. Pentagalloyl Glucose-Targeted Inhibition of P-Glycoprotein and Re-Sensitization of Multidrug-Resistant Leukemic Cells (K562/ADR) to Doxorubicin: In Silico and Functional Studies. Pharmaceuticals (Basel) 2023; 16:1192. [PMID: 37765000 PMCID: PMC10535865 DOI: 10.3390/ph16091192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/12/2023] [Accepted: 08/20/2023] [Indexed: 09/29/2023] Open
Abstract
Combining phytochemicals with chemotherapeutic drugs has demonstrated the potential to surmount drug resistance. In this paper, we explore the efficacy of pentagalloyl glucose (PGG) in modulating P-gp and reversing multidrug resistance (MDR) in drug-resistant leukemic cells (K562/ADR). The cytotoxicity of PGG was evaluated using a CCK-8 assay, and cell apoptosis was assessed using flow cytometry. Western blotting was used to analyze protein expression levels. P-glycoprotein (P-gp) activity was evaluated by monitoring the kinetics of P-gp-mediated efflux of pirarubicin (THP). Finally, molecular docking, molecular dynamics simulation, and molecular mechanics with generalized Born and surface area solvation (MM-GBSA) calculation were conducted to investigate drug-protein interactions. We found that PGG selectively induced cytotoxicity in K562/ADR cells and enhanced sensitivity to doxorubicin (DOX), indicating its potential as a reversal agent. PGG reduced the expression of P-gp and its gene transcript levels. Additionally, PGG inhibited P-gp-mediated efflux and increased intracellular drug accumulation in drug-resistant cells. Molecular dynamics simulations and MM-GBSA calculation provided insights into the binding affinity of PGG to P-gp, suggesting that PGG binds tightly to both the substrate and the ATP binding sites of P-gp. These findings support the potential of PGG to target P-gp, reverse drug resistance, and enhance the efficacy of anticancer therapies.
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Affiliation(s)
- Nathupakorn Dechsupa
- Molecular Imaging and Therapy Research Unit, Faculty of Associated Medical Sciences, Department of Radiologic Technology, Chiang Mai University, Chiang Mai 50200, Thailand; (N.D.); (P.I.); (A.S.)
- Faculty of Associated Medical Sciences, Department of Radiologic Technology, Chiang Mai University, Chiang Mai 50200, Thailand; (T.L.); (N.P.); (W.M.); (R.T.); (C.U.)
| | - Nopawit Khamto
- Faculty of Science, Department of Chemistry, Chiang Mai University, Chiang Mai 50200, Thailand (P.C.); (S.S.); (P.S.); (P.M.)
- Graduate School, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Pornthip Chawapun
- Faculty of Science, Department of Chemistry, Chiang Mai University, Chiang Mai 50200, Thailand (P.C.); (S.S.); (P.S.); (P.M.)
- Graduate School, Chiang Mai University, Chiang Mai 50200, Thailand
- Interdisciplinary Program in Biotechnology, Graduate School, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Sadanon Siriphong
- Faculty of Science, Department of Chemistry, Chiang Mai University, Chiang Mai 50200, Thailand (P.C.); (S.S.); (P.S.); (P.M.)
- Graduate School, Chiang Mai University, Chiang Mai 50200, Thailand
- Interdisciplinary Program in Biotechnology, Graduate School, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Phattarawadee Innuan
- Molecular Imaging and Therapy Research Unit, Faculty of Associated Medical Sciences, Department of Radiologic Technology, Chiang Mai University, Chiang Mai 50200, Thailand; (N.D.); (P.I.); (A.S.)
- Faculty of Associated Medical Sciences, Department of Radiologic Technology, Chiang Mai University, Chiang Mai 50200, Thailand; (T.L.); (N.P.); (W.M.); (R.T.); (C.U.)
| | - Authaphinya Suwan
- Molecular Imaging and Therapy Research Unit, Faculty of Associated Medical Sciences, Department of Radiologic Technology, Chiang Mai University, Chiang Mai 50200, Thailand; (N.D.); (P.I.); (A.S.)
- Faculty of Associated Medical Sciences, Department of Radiologic Technology, Chiang Mai University, Chiang Mai 50200, Thailand; (T.L.); (N.P.); (W.M.); (R.T.); (C.U.)
| | - Thitiworada Luangsuep
- Faculty of Associated Medical Sciences, Department of Radiologic Technology, Chiang Mai University, Chiang Mai 50200, Thailand; (T.L.); (N.P.); (W.M.); (R.T.); (C.U.)
| | - Nichakorn Photilimthana
- Faculty of Associated Medical Sciences, Department of Radiologic Technology, Chiang Mai University, Chiang Mai 50200, Thailand; (T.L.); (N.P.); (W.M.); (R.T.); (C.U.)
| | - Witchayaporn Maita
- Faculty of Associated Medical Sciences, Department of Radiologic Technology, Chiang Mai University, Chiang Mai 50200, Thailand; (T.L.); (N.P.); (W.M.); (R.T.); (C.U.)
| | - Rossarin Thanacharttanatchaya
- Faculty of Associated Medical Sciences, Department of Radiologic Technology, Chiang Mai University, Chiang Mai 50200, Thailand; (T.L.); (N.P.); (W.M.); (R.T.); (C.U.)
| | - Padchanee Sangthong
- Faculty of Science, Department of Chemistry, Chiang Mai University, Chiang Mai 50200, Thailand (P.C.); (S.S.); (P.S.); (P.M.)
| | - Puttinan Meepowpan
- Faculty of Science, Department of Chemistry, Chiang Mai University, Chiang Mai 50200, Thailand (P.C.); (S.S.); (P.S.); (P.M.)
- Center of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand
- Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Chatchanok Udomtanakunchai
- Faculty of Associated Medical Sciences, Department of Radiologic Technology, Chiang Mai University, Chiang Mai 50200, Thailand; (T.L.); (N.P.); (W.M.); (R.T.); (C.U.)
| | - Jiraporn Kantapan
- Molecular Imaging and Therapy Research Unit, Faculty of Associated Medical Sciences, Department of Radiologic Technology, Chiang Mai University, Chiang Mai 50200, Thailand; (N.D.); (P.I.); (A.S.)
- Faculty of Associated Medical Sciences, Department of Radiologic Technology, Chiang Mai University, Chiang Mai 50200, Thailand; (T.L.); (N.P.); (W.M.); (R.T.); (C.U.)
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Wen C, Dechsupa N, Yu Z, Zhang X, Liang S, Lei X, Xu T, Gao X, Hu Q, Innuan P, Kantapan J, Lü M. Pentagalloyl Glucose: A Review of Anticancer Properties, Molecular Targets, Mechanisms of Action, Pharmacokinetics, and Safety Profile. Molecules 2023; 28:4856. [PMID: 37375411 DOI: 10.3390/molecules28124856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 06/07/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
Pentagalloyl glucose (PGG) is a natural hydrolyzable gallotannin abundant in various plants and herbs. It has a broad range of biological activities, specifically anticancer activities, and numerous molecular targets. Despite multiple studies available on the pharmacological action of PGG, the molecular mechanisms underlying the anticancer effects of PGG are unclear. Here, we have critically reviewed the natural sources of PGG, its anticancer properties, and underlying mechanisms of action. We found that multiple natural sources of PGG are available, and the existing production technology is sufficient to produce large quantities of the required product. Three plants (or their parts) with maximum PGG content were Rhus chinensis Mill, Bouea macrophylla seed, and Mangifera indica kernel. PGG acts on multiple molecular targets and signaling pathways associated with the hallmarks of cancer to inhibit growth, angiogenesis, and metastasis of several cancers. Moreover, PGG can enhance the efficacy of chemotherapy and radiotherapy by modulating various cancer-associated pathways. Therefore, PGG can be used for treating different human cancers; nevertheless, the data on the pharmacokinetics and safety profile of PGG are limited, and further studies are essential to define the clinical use of PGG in cancer therapies.
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Affiliation(s)
- Chengli Wen
- Department of Intensive Care Medicine, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
- Luzhou Key Laboratory of Human Microecology and Precision Diagnosis and Treatment, Luzhou 646000, China
| | - Nathupakorn Dechsupa
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Zehui Yu
- Laboratory Animal Center, Southwest Medical University, Luzhou 646000, China
| | - Xu Zhang
- Luzhou Key Laboratory of Human Microecology and Precision Diagnosis and Treatment, Luzhou 646000, China
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Sicheng Liang
- Luzhou Key Laboratory of Human Microecology and Precision Diagnosis and Treatment, Luzhou 646000, China
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Xianying Lei
- Department of Intensive Care Medicine, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Tao Xu
- Department of Intensive Care Medicine, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Xiaolan Gao
- Department of Intensive Care Medicine, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Qinxue Hu
- Department of Intensive Care Medicine, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Phattarawadee Innuan
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Jiraporn Kantapan
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Muhan Lü
- Luzhou Key Laboratory of Human Microecology and Precision Diagnosis and Treatment, Luzhou 646000, China
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
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Pentagalloyl Glucose and Cisplatin Combination Treatment Exhibits a Synergistic Anticancer Effect in 2D and 3D Models of Head and Neck Carcinoma. Pharmaceuticals (Basel) 2022; 15:ph15070830. [PMID: 35890129 PMCID: PMC9317773 DOI: 10.3390/ph15070830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/28/2022] [Accepted: 06/30/2022] [Indexed: 02/05/2023] Open
Abstract
Although cisplatin is a first-line chemotherapy drug for head and neck squamous cell carcinoma (HNSCC), its therapeutic efficacy is limited owing to serious side effects and acquired drug resistance. This study determined whether combining pentagalloyl glucose (PGG) and cisplatin enhanced their anti-tumor activities on HNSCC cell lines. We investigated the anticancer effect of PGG combined with cisplatin in 2D and 3D multicellular spheroid cell culture. The results revealed that PGG combined with cisplatin inhibited cell viability and produced synergistic effects. PGG potentiates the anticancer effect of cisplatin by promoting apoptosis and inhibiting cell migration. The western blot and molecular docking analysis revealed that the synergistic effect of the combination treatment may be related to the PGG-mediated reduced expression of phosphorylated STAT3 and phosphorylated Akt. Furthermore, we found that the combined treatment of PGG and cisplatin’s effect on 3D multicellular spheroid size was more potent than the monotherapies. Our findings indicated that the combination therapy of PGG and cisplatin synergistically inhibited HNSCC cancer cell viability and induced apoptosis in 2D and 3D models. The present results suggested that PGG may be a promising adjunct drug used with cisplatin for a practical therapeutic approach to head and neck cancer.
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Kantapan J, Paksee S, Duangya A, Sangthong P, Roytrakul S, Krobthong S, Suttana W, Dechsupa N. A radiosensitizer, gallotannin-rich extract from Bouea macrophylla seeds, inhibits radiation-induced epithelial-mesenchymal transition in breast cancer cells. BMC Complement Med Ther 2021; 21:189. [PMID: 34217266 PMCID: PMC8254241 DOI: 10.1186/s12906-021-03363-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 06/21/2021] [Indexed: 12/19/2022] Open
Abstract
Background Radioresistance can pose a significant obstacle to the effective treatment of breast cancers. Epithelial–mesenchymal transition (EMT) is a critical step in the acquisition of stem cell traits and radioresistance. Here, we investigated whether Maprang seed extract (MPSE), a gallotannin-rich extract of seed from Bouea macrophylla Griffith, could inhibit the radiation-induced EMT process and enhance the radiosensitivity of breast cancer cells. Methods Breast cancer cells were pre-treated with MPSE before irradiation (IR), the radiosensitizing activity of MPSE was assessed using the colony formation assay. Radiation-induced EMT and stemness phenotype were identified using breast cancer stem cells (CSCs) marker (CD24−/low/CD44+) and mammosphere formation assay. Cell motility was determined via the wound healing assay and transwell migration. Radiation-induced cell death was assessed via the apoptosis assay and SA-β-galactosidase staining for cellular senescence. CSCs- and EMT-related genes were confirmed by real-time PCR (qPCR) and Western blotting. Results Pre-treated with MPSE before irradiation could reduce the clonogenic activity and enhance radiosensitivity of breast cancer cell lines with sensitization enhancement ratios (SERs) of 2.33 and 1.35 for MCF7 and MDA-MB231cells, respectively. Pretreatment of breast cancer cells followed by IR resulted in an increased level of DNA damage maker (γ-H2A histone family member) and enhanced radiation-induced cell death. Irradiation induced EMT process, which displayed a significant EMT phenotype with a down-regulated epithelial marker E-cadherin and up-regulated mesenchymal marker vimentin in comparison with untreated breast cancer cells. Notably, we observed that pretreatment with MPSE attenuated the radiation-induced EMT process and decrease some stemness-like properties characterized by mammosphere formation and the CSC marker. Furthermore, pretreatment with MPSE attenuated the radiation-induced activation of the pro-survival pathway by decrease the expression of phosphorylation of ERK and AKT and sensitized breast cancer cells to radiation. Conclusion MPSE enhanced the radiosensitivity of breast cancer cells by enhancing IR-induced DNA damage and cell death, and attenuating the IR-induced EMT process and stemness phenotype via targeting survival pathways PI3K/AKT and MAPK in irradiated breast cancer cells. Our findings describe a novel strategy for increasing the efficacy of radiotherapy for breast cancer patients using a safer and low-cost natural product, MPSE. Supplementary Information The online version contains supplementary material available at 10.1186/s12906-021-03363-6.
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Affiliation(s)
- Jiraporn Kantapan
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand.
| | - Siwaphon Paksee
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Aphidet Duangya
- Interdisciplinary Program of Biotechnology, Graduate School, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Padchanee Sangthong
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand.,Research Center on Chemistry for Development of Health Promoting Products from Northern Resources, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Sittiruk Roytrakul
- Functional Ingredients and Food Innovation Research Group, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand
| | - Sucheewin Krobthong
- National Omics Center (NOC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand
| | - Wipob Suttana
- Department of Biomedical Science, School of Health Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - Nathupakorn Dechsupa
- Molecular Imaging and Therapy Research Unit, Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
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Liberal J, Costa G, Carmo A, Vitorino R, Marques C, Domingues MR, Domingues P, Gonçalves AC, Alves R, Sarmento-Ribeiro AB, Girão H, Cruz MT, Batista MT. Chemical characterization and cytotoxic potential of an ellagitannin-enriched fraction from Fragaria vesca leaves. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.11.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Small molecule inhibition of matrix metalloproteinases as a potential therapeutic for metastatic activity in squamous cell carcinoma. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/s41548-019-00017-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Li L, Kong J, Yao CH, Liu XF, Liu JH. Rapid identification of urokinase plasminogen activator inhibitors from Traditional Chinese Medicines based on ultrafiltration, LC-MS and in silico docking. J Pharm Biomed Anal 2019; 164:241-248. [PMID: 30396051 DOI: 10.1016/j.jpba.2018.10.036] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 09/27/2018] [Accepted: 10/21/2018] [Indexed: 02/06/2023]
Abstract
The urokinase plasminogen activator (uPA) is regarded as the crucial trigger for plasmin generation, which is involved in several diseases especially for neoplasm metastasis. In this study, an efficient approach integrating ultrafiltration, LC/MS, bioassay and in silico docking, was proposed for rapidly detecting uPA ligands from Traditional Chinese Medicines (TCMs). Forty-two TCMs were initially assessed, and as illustrative case studies, Galla Chinensis and Sanguisorbae Radix, which appeared significant inhibitory activities on uPA, were chosen to develpe and verify the strategy. A total of seven uPA ligands were successfully detected and identified. Two of them, pentagalloylglucose and 28-O-β-d-glucopyranosyl pomolic acid, were demonstrated to be potential inhibitors, with IC50 at 1.639 μM and 37.82 μM repectively. Furthermore, a combinatorial compound library screening combined with in silico docking assay, was revealed that ursolic acid (IC50 = 2.623 μM) was also speculated to be a potent parent structure for inhibition of uPA. This approach offers a multidimensional perspective to discover uPA-binding leading compounds from TCMs or other complex mixtures, which would provide an efficient route for drug discovery.
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Affiliation(s)
- Li Li
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China
| | - Jing Kong
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China
| | - Chun-Hua Yao
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China
| | - Xiu-Feng Liu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China.
| | - Ji-Hua Liu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China.
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Patnaik SS, Simionescu DT, Goergen CJ, Hoyt K, Sirsi S, Finol EA. Pentagalloyl Glucose and Its Functional Role in Vascular Health: Biomechanics and Drug-Delivery Characteristics. Ann Biomed Eng 2019; 47:39-59. [PMID: 30298373 PMCID: PMC6318003 DOI: 10.1007/s10439-018-02145-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 09/28/2018] [Indexed: 02/08/2023]
Abstract
Pentagalloyl glucose (PGG) is an elastin-stabilizing polyphenolic compound that has significant biomedical benefits, such as being a free radical sink, an anti-inflammatory agent, anti-diabetic agent, enzymatic resistant properties, etc. This review article focuses on the important benefits of PGG on vascular health, including its role in tissue mechanics, the different modes of pharmacological administration (e.g., oral, intravenous and endovascular route, intraperitoneal route, subcutaneous route, and nanoparticle based delivery and microbubble-based delivery), and its potential therapeutic role in vascular diseases such as abdominal aortic aneurysms (AAA). In particular, the use of PGG for AAA suppression and prevention has been demonstrated to be effective only in the calcium chloride rat AAA model. Therefore, in this critical review we address the challenges that lie ahead for the clinical translation of PGG as an AAA growth suppressor.
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Affiliation(s)
- Sourav S Patnaik
- Vascular Biomechanics and Biofluids Laboratory, Department of Mechanical Engineering, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249-0670, USA
| | - Dan T Simionescu
- Department of Bioengineering, Clemson University, Clemson, SC, USA
| | - Craig J Goergen
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA
| | - Kenneth Hoyt
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX, USA
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Shashank Sirsi
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX, USA
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ender A Finol
- Vascular Biomechanics and Biofluids Laboratory, Department of Mechanical Engineering, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, 78249-0670, USA.
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Lee WL, Yew PN, Lim YY. Tannic acid-rich porcupine bezoars induce apoptosis and cell cycle arrest in human colon cancer cells. Pharmacogn Mag 2019. [DOI: 10.4103/pm.pm_620_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Kawk SH, Kang YR, Kim YH. 1,2,3,4,6-Penta-O-galloyl-β-d-glucose suppresses colon cancer through induction of tumor suppressor. Bioorg Med Chem Lett 2018; 28:2117-2123. [PMID: 29778287 DOI: 10.1016/j.bmcl.2018.05.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 05/11/2018] [Accepted: 05/12/2018] [Indexed: 12/27/2022]
Abstract
Colon cancer is the third most common malignancy in both sexes of Korea. Here, we investigated anti-colorectal cancer effects of 1,2,3,4,6-penta-O-galloyl-β-d-glucose (PGG), a gallotannin from Galla rhois, and its possible mechanisms. PGG induced cytotoxicity and decreased proliferation of colon cancer cells without affecting normal colon fibroblasts. PGG inhibited clonogenic ability and induced apoptosis in cancer cells. One of the underlying mechanisms of the anti-cancer effect exerted by PGG, was owing to the induction p53 expression, a well-known tumor suppressor, and increased in P21, the representative target gene of p53. PGG affected cell-cycle- or apoptosis-related proteins such as cyclin E, CDK2, and Bcl-2, cleaved caspase-3. Also, PGG induced caspase-3/7 activity. These data suggest that PGG exerts anti-colorectal cancer effects.
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Affiliation(s)
- Sang Hee Kawk
- Department of Food and Nutrition, College of Engineering, Daegu University, Gyeongsan 38453, Republic of Korea.
| | - Ye Rim Kang
- Department of Food and Nutrition, College of Engineering, Daegu University, Gyeongsan 38453, Republic of Korea.
| | - Yoon Hee Kim
- Department of Food and Nutrition, College of Engineering, Daegu University, Gyeongsan 38453, Republic of Korea; Research Institute of Anti-aging, Daegu University, Gyeongsan 38453, Republic of Korea.
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Metabolite characterization of Penta- O -galloyl-β- D -glucose in rat biofluids by HPLC-QTOF-MS. CHINESE HERBAL MEDICINES 2018. [DOI: 10.1016/j.chmed.2018.01.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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Bae S, Kang SC, Song YJ. Inhibition of human cytomegalovirus immediate-early gene expression and replication by the ethyl acetate (EtOAc) fraction of Elaeocarpus sylvestris in vitro. Altern Ther Health Med 2017; 17:428. [PMID: 28851336 PMCID: PMC5576240 DOI: 10.1186/s12906-017-1941-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 08/21/2017] [Indexed: 11/10/2022]
Abstract
Background In immunocompromised patients, human cytomegalovirus (HCMV) infection can lead to severe, life-threatening diseases, such as pneumonitis, hepatitis, gastrointestinal tract disease, and retinitis. We previously reported that a 70% ethanol extract of Elaeocarpus sylvestris leaves (ESE) inhibits human cytomegalovirus (HCMV) replication in vitro. In the present study, we determined the solvent fraction of ESE that inhibits HCMV replication using activity-guided fractionation. Methods Activity-guided fractionation of ESE was performed to determine the solvent fraction that inhibits HCMV replication. Effects of solvent fractions on HCMV lytic gene expression and major immediate-early (MIE) enhancer/promoter activity were further investigated. Results Among the solvent fractions tested, the EtOAc fraction of ESE markedly reduced HCMV lytic gene expression and viral replication in vitro without exerting significant cytotoxic effects against human foreskin fibroblasts (HFF). Furthermore, the EtOAc fraction negatively affected HCMV MIE enhancer/promoter activity. Conclusion Our data collectively indicate that the EtOAc fraction of ESE contains active constituents that inhibit HCMV MIE enhancer/promoter activity and viral replication. The EtOAc fraction of ESE is a good source of novel drug candidates for treatment of HCMV-associated diseases.
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1,2,3,4,6-Pentakis[-O-(3,4,5-trihydroxybenzoyl)]-α,β-D-glucopyranose (PGG) analogs: design, synthesis, anti-tumor and anti-oxidant activities. Carbohydr Res 2016; 430:72-81. [DOI: 10.1016/j.carres.2016.04.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 04/14/2016] [Accepted: 04/21/2016] [Indexed: 01/13/2023]
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15
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Mullen GE, Yet L. Progress in the development of fatty acid synthase inhibitors as anticancer targets. Bioorg Med Chem Lett 2015; 25:4363-9. [DOI: 10.1016/j.bmcl.2015.08.087] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 08/26/2015] [Accepted: 08/31/2015] [Indexed: 12/20/2022]
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16
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Panusa A, Petrucci R, Marrosu G, Multari G, Gallo FR. UHPLC-PDA-ESI-TOF/MS metabolic profiling of Arctostaphylos pungens and Arctostaphylos uva-ursi. A comparative study of phenolic compounds from leaf methanolic extracts. PHYTOCHEMISTRY 2015; 115:79-88. [PMID: 25702282 DOI: 10.1016/j.phytochem.2015.01.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 11/20/2014] [Accepted: 01/12/2015] [Indexed: 05/08/2023]
Abstract
The aim of this study was to get a rapid metabolic fingerprinting and to gain insight into the metabolic profiling of Arctostaphylos pungens H. B. K., a plant morphologically similar to Arctostaphylos uva-ursi (L.) Spreng. (bearberry) but with a lower arbutin (Arb) content. According to the European Pharmacopoeia the Arb content in the dried leaf of A. uva-ursi (L.) Spreng. must be at least 7% (wt/wt) but other species, like A. pungens, are unintentionally or fraudulently marketed instead of it. Therefore, methanolic leaf extracts of nine A. uva-ursi and six A. pungens samples labeled and marketed as "bearberry leaf" have been analyzed. A five-minute gradient with a UHPLC-PDA-ESI-TOF/MS on an Acquity BEH C18 (50×2.1 mm i.d.) 1.7 μm analytical column has been used for the purpose. A comprehensive assignment of secondary metabolites has been carried out in a comparative study of the two species. Among twenty-nine standards of natural compounds analyzed, fourteen have been identified, while other fifty-five metabolites have been tentatively assigned. Moreover, differences in both metabolic fingerprinting and profiling have been evidenced by statistical multivariate analysis. Specifically, main variations have been observed in the relative content for Arb, as expected, and for some galloyl derivative like tetra- and pentagalloylglucose more abundant in A. uva-ursi than in A. pungens. Furthermore, differences in flavonols profile, especially in myricetin and quercetin glycosilated derivatives, were observed. Based on principal component analysis myricetrin, together with a galloyl arbutin isomer and a disaccharide are herein proposed as distinctive metabolites for A. pungens.
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Affiliation(s)
- Alessia Panusa
- Dipartimento del Farmaco, Istituto Superiore di Sanità, Viale Regina Elena 299, I-00161 Rome, Italy.
| | - Rita Petrucci
- Dipartimento di Scienze di Base e Applicate per l'Ingegneria SBAI, Sapienza Università di Roma, Via del Castro Laurenziano 7, I-00161 Rome, Italy
| | - Giancarlo Marrosu
- Dipartimento di Scienze di Base e Applicate per l'Ingegneria SBAI, Sapienza Università di Roma, Via del Castro Laurenziano 7, I-00161 Rome, Italy
| | - Giuseppina Multari
- Dipartimento del Farmaco, Istituto Superiore di Sanità, Viale Regina Elena 299, I-00161 Rome, Italy
| | - Francesca Romana Gallo
- Dipartimento del Farmaco, Istituto Superiore di Sanità, Viale Regina Elena 299, I-00161 Rome, Italy
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1,2,3,4,6-Penta-O-galloylglucose within Galla Chinensis Inhibits Human LDH-A and Attenuates Cell Proliferation in MDA-MB-231 Breast Cancer Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:276946. [PMID: 25918543 PMCID: PMC4396556 DOI: 10.1155/2015/276946] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 11/20/2014] [Accepted: 11/20/2014] [Indexed: 12/28/2022]
Abstract
A characteristic feature of aggressive malignancy is the overexpression of lactic acid dehydrogenase- (LDH-) A, concomitant to pericellular accumulation of lactate. In a recent high-throughput screening, we identified Rhus chinensis (Mill.) gallnut (RCG) (also known as Galla Chinensis) extract as a potent (IC50 < 1 µg/mL) inhibitor of human LDH-A (hLDH-A). In this study, through bioactivity guided fractionation of the crude extract, the data demonstrate that penta-1,2,3,4,6-O-galloyl-β-D-glucose (PGG) was a primary constituent responsible for hLDH-A inhibition, present at ~9.95 ± 0.34% dry weight. Theoretical molecular docking studies of hLDH-A indicate that PGG acts through competitive binding at the NADH cofactor site, effects confirmed by functional enzyme studies where the IC50 = 27.32 nM was reversed with increasing concentration of NADH. Moreover, we confirm protein expression of hLDH-A in MDA-231 human breast carcinoma cells and show that PGG was toxic (LC50 = 94.18 µM), parallel to attenuated lactic acid production (IC50 = 97.81 µM). In a 72-hour cell proliferation assay, PGG was found to be a potent cytostatic agent with ability to halt cell division (IC50 = 1.2 µM) relative to paclitaxel (IC50 < 100 nM). In summary, these findings demonstrate that PGG is a potent hLDH-A inhibitor with significant capacity to halt proliferation of human breast cancer cells.
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A validated liquid chromatography-tandem mass spectrometry method for the determination of methyl gallate and pentagalloyl glucopyranose: application to pharmacokinetic studies. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 986-987:12-7. [PMID: 25703947 DOI: 10.1016/j.jchromb.2015.02.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 01/30/2015] [Accepted: 02/03/2015] [Indexed: 11/23/2022]
Abstract
Methyl gallate (MG) and pentagalloyl glucopyranose (PGG) are bioactive phenolic compounds that are widely distributed in herbs and plant foods. Their potential activities include anti-oxidant, anti-inflammatory, anti-cancer, anti-bacterial and anti-viral activities. However, knowledge concerning the pharmacokinetic characteristics of MG and PGG is limited. The purpose of this study was to develop a sensitive and reproducible ultra-performance liquid chromatography-tandem mass spectrometric (UPLC-MS/MS) method to simultaneously quantify MG and PGG in rat blood samples. The linear response ranges for MG and PGG were 0.0195-20 and 0.0390-20 μM, respectively. The lower limit of quantification was 0.0195 μM for MG and 0.0390 μM for PGG. The intra- and inter-day variances were less than 15%, and accuracy was within 80-120%. This assay was successfully applied to pharmacokinetic studies in Sprague-Dawley rats after intraperitoneal administration of MG and PGG (20 mg/kg). The values of areas under the blood concentration time curves (AUC₀₋₂₄ h) for MG and PGG were 109.9 ± 73.40 and 38.78 ± 24.53 h*μM, respectively. The maximum blood concentrations (Cmax) of MG and PGG were 34.72 ± 17.32 and 6.39 ± 4.25 μM, respectively. The time required to reach the maximum concentration (Tmax) was 0.85 ± 0.70 h for both MG and PGG. The values of the elimination rate constant (Ke), elimination half-life (t1/2), volume of distribution (Vd), clearance (Cl) and mean resident time (MRTlast) were 0.056 ± 0.032 h(-1), 17.50 ± 12.25 h, 530.95 ± 247.54 L/kg, 159.91±76.05L/h/kg, 8.71 ± 2.53 h for MG and 0.023 ± 0.012 h(-1), 38.66 ± 22.89 h, 7838.89 ± 3474.72 L/kg, 30.98 ± 21.73 L/h/kg, 12.47 ± 2.77 h for PGG, respectively. In conclusion, a UPLC-MS/MS method was fully validated over a wide linear range and used to quantify the levels of MG and PGG in pharmacokinetic studies of MG and PGG in rats. The main advantages of this method are the use of small blood volumes (10 μL), rapid analysis (5 min) and excellent recoveries.
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Dietary polyphenols in prevention and treatment of prostate cancer. Int J Mol Sci 2015; 16:3350-76. [PMID: 25654230 PMCID: PMC4346900 DOI: 10.3390/ijms16023350] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 01/21/2015] [Accepted: 01/26/2015] [Indexed: 02/06/2023] Open
Abstract
Prostate cancer is the most prevalent disease affecting males in many Western countries, with an estimated 29,480 deaths in 2014 in the US alone. Incidence rates for prostate cancer deaths have been decreasing since the early 1990s in men of all races/ethnicities, though they remain about 60% higher in African Americans than in any other group. The relationship between dietary polyphenols and the prevention of prostate cancer has been examined previously. Although results are sometimes inconsistent and variable, there is a general agreement that polyphenols hold great promise for the future management of prostate cancer. Various dietary components, including polyphenols, have been shown to possess anti-cancer properties. Generally considered as non-toxic, dietary polyphenols act as key modulators of signaling pathways and are therefore considered ideal chemopreventive agents. Besides possessing various anti-tumor properties, dietary polyphenols also contribute to epigenetic changes associated with the fate of cancer cells and have emerged as potential drugs for therapeutic intervention. Polyphenols have also been shown to affect post-translational modifications and microRNA expressions. This article provides a systematic review of the health benefits of selected dietary polyphenols in prostate cancer, especially focusing on the subclasses of polyphenols, which have a great effect on disease prevention and treatment.
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Chen YY, Lu HF, Hsu SC, Kuo CL, Chang SJ, Lin JJ, Wu PP, Liu JY, Lee CH, Chung JG, Chang JB. Bufalin inhibits migration and invasion in human hepatocellular carcinoma SK-Hep1 cells through the inhibitions of NF-kB and matrix metalloproteinase-2/-9-signaling pathways. ENVIRONMENTAL TOXICOLOGY 2015; 30:74-82. [PMID: 23949904 DOI: 10.1002/tox.21896] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 07/10/2013] [Accepted: 07/11/2013] [Indexed: 06/02/2023]
Abstract
Metastasis plays an important role in mortality of cancer patients. Migration and invasion are the major characteristics of tumor metastasis. The induction of matrix metalloproteinases (MMPs) such as MMP-2 and -9 are particularly important for the invasiveness of various cancer cells. Bufalin, a class of toxic steroids, was purified from the skin glands of Bufo gargarizans or Bufo melanostictus; it is known to inhibit proliferation of human cancer cells. In this study, we investigated the antiinvasive mechanisms of bufalin in the human hepatocellular cancer cell line SK-Hep1. Bufalin significantly reduced serum-induced cell invasion and migration. Furthermore, bufalin markedly inhibited MMP-2 and -9 activity, mRNA expression and protein levels in SK-Hep1 cells. Bufalin attenuated phosphoinisitide-3-kinase (PI3K) and phosphorylation of AKT which was associated with reduced levels of nuclear factor kappa B (NF-κB). Bufalin also suppressed protein levels of FAK and Rho A, VEGF, MEKK3, MKK7, and uPA and it diminished NF-κB translocation. Based on these observations, we propose that bufalin is acts as an antiinvasive agent by inhibiting MMP-2 and -9 and involving PI3K/AKT and NF-κB pathways. Bufalin is a potential therapeutic agent that may have efficacy in preventing the invasion and metastasis of malignant liver tumors.
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Affiliation(s)
- Ya-Yin Chen
- Department of Chinese-Western Medicine Integration, Chung Shan Medical University Hospital, Taichung, 402, Taiwan, ROC; School of Medicine, Chung Shan Medical University, Taichung, 402, Taiwan, ROC
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21
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Huang C, Chen YJ, Chen WJ, Lin CL, Wei YX, Huang HC. Combined treatment with chrysin and 1,2,3,4,6-penta-O-galloyl-β-D-glucose synergistically inhibits LRP6 and Skp2 activation in triple-negative breast cancer and xenografts. Mol Carcinog 2014; 54:1613-25. [DOI: 10.1002/mc.22234] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 09/02/2014] [Accepted: 09/11/2014] [Indexed: 01/02/2023]
Affiliation(s)
- Cheng Huang
- National Research Institute of Chinese Medicine; Taipei Taiwan ROC
| | - Yi Jing Chen
- Department of Applied Science; National Hsinchu University of Education; Hsinchu Taiwan ROC
| | - Wei-Jen Chen
- Department of Biomedical Sciences; Chung Shan Medical University; Taichung Taiwan ROC
- Department of Medical Research; Chung Shan Medical University Hospital; Taichung Taiwan ROC
| | - Chih-Li Lin
- Department of Medical Research; Chung Shan Medical University Hospital; Taichung Taiwan ROC
- Institute of Medicine; Chung Shan Medical University; Taichung Taiwan ROC
| | - Yu Xuan Wei
- Department of Applied Science; National Hsinchu University of Education; Hsinchu Taiwan ROC
| | - Hsiu Chen Huang
- Department of Applied Science; National Hsinchu University of Education; Hsinchu Taiwan ROC
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22
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Lin VCH, Kuo PT, Lin YC, Chen Y, Hseu YC, Yang HL, Kao JY, Ho CT, Way TD. Penta-O-galloyl-β-D-glucose suppresses EGF-induced eIF3i expression through inhibition of the PI3K/AKT/mTOR pathway in prostate cancer cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:8990-8996. [PMID: 25123845 DOI: 10.1021/jf502447e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Approximately 70% of prostate cancer patients will develop bone metastasis in axial and other regions of the skeleton. Epidermal growth factor (EGF) generated from bone tissue contributes to prostate cancer metastasis. In a previous study, penta-O-galloyl-β-D-glucose (PGG) suppressed androgen-independent prostate cancer bone metastasis by transcriptionally repressing EGF-induced MMP-9 expression. This study utilized proteomics to analyze the effects of PGG in EGF-induced prostate cancer bone metastasis. This study showed that PGG suppressed EGF-induced eIF3i expression in PC-3 cells. By transfection of eIF3i shRNA, it was observed that reduced eIF3i expression suppressed the invasion of PC-3 cells in vitro. PGG reduced EGF-induced eIF3i expression through inhibition of the PI3K/AKT/mTOR pathway. Therefore, PGG may be able to be used as a potential new therapeutic drug for prostate cancer bone metastasis.
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23
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Chen SC, Chien YC, Pan CH, Sheu JH, Chen CY, Wu CH. Inhibitory effect of dihydroaustrasulfone alcohol on the migration of human non-small cell lung carcinoma A549 cells and the antitumor effect on a Lewis lung carcinoma-bearing tumor model in C57BL/6J mice. Mar Drugs 2014; 12:196-213. [PMID: 24413802 PMCID: PMC3917270 DOI: 10.3390/md12010196] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 12/14/2013] [Accepted: 12/16/2013] [Indexed: 01/03/2023] Open
Abstract
There are many major causes of cancer death, including metastasis of cancer. Dihydroaustrasulfone alcohol, which is isolated from marine coral, has shown antioxidant activity, but has not been reported to have an anti-cancer effect. We first discovered that dihydroaustrasulfone alcohol provided a concentration-dependent inhibitory effect on the migration and motility of human non-small cell lung carcinoma (NSCLC) A549 cells by trans-well and wound healing assays. The results of a zymography assay and Western blot showed that dihydroaustrasulfone alcohol suppressed the activities and protein expression of matrix metalloproteinase (MMP)-2 and MMP-9. Further investigation revealed that dihydroaustrasulfone alcohol suppressed the phosphorylation of ERK1/2, p38, and JNK1/2. Dihydroaustrasulfone alcohol also suppressed the expression of PI3K and the phosphorylation of Akt. Furthermore, dihydroaustrasulfone alcohol markedly inhibited tumor growth in Lewis lung cancer (LLC)-bearing mice. We concluded that dihydroaustrasulfone alcohol is a new pure compound with anti-migration and anti-tumor growth activity in lung cancer and might be applied to clinical treatment in the future.
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Affiliation(s)
- Shuo-Chueh Chen
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung 404, Taiwan
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, China Medical University Hospital, Taichung 404, Taiwan
- School of Medicine, China Medical University, Taichung 404, Taiwan; E-Mail:
| | - Yi-Chung Chien
- School of Pharmacy, China Medical University, 91 Hsueh-Shih Road, Taichung 404, Taiwan; E-Mail:
- College of Pharmacy, Taipei Medical University, 250 Wu-Hsing Street, Taipei City 110, Taiwan; E-Mail:
| | - Chun-Hsu Pan
- College of Pharmacy, Taipei Medical University, 250 Wu-Hsing Street, Taipei City 110, Taiwan; E-Mail:
| | - Jyh-Horng Sheu
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, 70 Lien-Hai Road, Kaohsiung 804, Taiwan
- Authors to whom correspondence should be addressed; E-Mails: (C.-H.W.); (J.-H.S.); (C.-Y.C.); Tel.: +886-2-2736-1661 (ext. 6100) (C.-H.W.); Fax: +886-2-2739-0671 (C.-H.W.); Tel.: +886-7-5252000 (ext. 5030) (J.-H.S.); Fax: +886-7-5255-0200 (J.-H.S.); Tel.: +886-4-22052121 (ext. 1921) (C.-Y.C.); Fax: +886-4-2203-8883 (C.-Y.C.)
| | - Chih-Yi Chen
- Division of Chest Surgery and Cancer Center, Department of Surgery, China Medical University Hospital, Taichung 404, Taiwan
- Authors to whom correspondence should be addressed; E-Mails: (C.-H.W.); (J.-H.S.); (C.-Y.C.); Tel.: +886-2-2736-1661 (ext. 6100) (C.-H.W.); Fax: +886-2-2739-0671 (C.-H.W.); Tel.: +886-7-5252000 (ext. 5030) (J.-H.S.); Fax: +886-7-5255-0200 (J.-H.S.); Tel.: +886-4-22052121 (ext. 1921) (C.-Y.C.); Fax: +886-4-2203-8883 (C.-Y.C.)
| | - Chieh-Hsi Wu
- College of Pharmacy, Taipei Medical University, 250 Wu-Hsing Street, Taipei City 110, Taiwan; E-Mail:
- Authors to whom correspondence should be addressed; E-Mails: (C.-H.W.); (J.-H.S.); (C.-Y.C.); Tel.: +886-2-2736-1661 (ext. 6100) (C.-H.W.); Fax: +886-2-2739-0671 (C.-H.W.); Tel.: +886-7-5252000 (ext. 5030) (J.-H.S.); Fax: +886-7-5255-0200 (J.-H.S.); Tel.: +886-4-22052121 (ext. 1921) (C.-Y.C.); Fax: +886-4-2203-8883 (C.-Y.C.)
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Dong Y, Yin S, Jiang C, Luo X, Guo X, Zhao C, Fan L, Meng Y, Lu J, Song X, Zhang X, Chen N, Hu H. Involvement of autophagy induction in penta-1,2,3,4,6-O-galloyl-β-D-glucose-induced senescence-like growth arrest in human cancer cells. Autophagy 2013; 10:296-310. [PMID: 24389959 DOI: 10.4161/auto.27210] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Growing evidence has demonstrated that autophagy plays important and paradoxical roles in carcinogenesis, while senescence is considered to be a crucial tumor-suppressor mechanism in cancer prevention and treatment. In the present study we demonstrated that both autophagy and senescence were induced in response to penta-1,2,3,4,6-O-galloyl-β-D-glucose (PGG), a chemopreventive polyphonolic compound, in multiple types of cancer cells. Analysis of these 2 events over the experimental time course indicated that autophagy and senescence occurred in parallel early in the process and dissociated later. The long-term culture study suggested that a subpopulation of senescent cells may have the capacity to reenter the cell cycle. Inhibition of autophagy by either a chemical inhibitor or RNA interference led to a significant reduction of PGG-induced senescence, followed by induction of apoptosis. These results suggested that autophagy promoted senescence induction by PGG and that PGG might exert its anticancer activity through autophagy-mediated senescence. For the first time, these findings uncovered the relationships among autophagy, senescence, and apoptosis induced by PGG. In addition, we identified that unfolded protein response signaling played a pivotal role in the autophagy-mediated senescence phenotype. Furthermore, our data showed that activation of MAPK8/9/10 (mitogen-activated protein kinase 8/9/10/c-Jun N-terminal kinases) was an essential upstream signal for PGG-induced autophagy. Finally, the key in vitro results were validated in vivo in a xenograft mouse model of human HepG2 liver cancer. Our findings provided novel insights into understanding the mechanisms and functions of PGG-induced autophagy and senescence in human cancer cells.
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Affiliation(s)
- Yinhui Dong
- Department of Nutrition and Health; College of Food Science and Nutritional Engineering; Beijing Key Laboratory of Functional Food from Plant Resources; China Agricultural University; Beijing, China; Department of Biomedical Sciences; Texas Tech University School of Pharmacy; Amarillo, TX USA
| | - Shutao Yin
- Department of Nutrition and Health; College of Food Science and Nutritional Engineering; Beijing Key Laboratory of Functional Food from Plant Resources; China Agricultural University; Beijing, China
| | - Cheng Jiang
- Department of Biomedical Sciences; Texas Tech University School of Pharmacy; Amarillo, TX USA
| | - Xiaohe Luo
- Department of Hepatobiliary Surgery; The First Affiliated Hospital; Harbin Medical University; Harbin, Heilongjiang China
| | - Xiao Guo
- Department of Nutrition and Health; College of Food Science and Nutritional Engineering; Beijing Key Laboratory of Functional Food from Plant Resources; China Agricultural University; Beijing, China
| | - Chong Zhao
- Department of Nutrition and Health; College of Food Science and Nutritional Engineering; Beijing Key Laboratory of Functional Food from Plant Resources; China Agricultural University; Beijing, China
| | - Lihong Fan
- College of Veterinary Medicine; China Agricultural University; Beijing, China
| | - Yubing Meng
- Nanyang Administration of Traditional Chinese Medicine; Nanyang, Henan China
| | - Junxuan Lu
- Department of Biomedical Sciences; Texas Tech University School of Pharmacy; Amarillo, TX USA
| | - Xinhua Song
- Department of Nutrition and Health; College of Food Science and Nutritional Engineering; Beijing Key Laboratory of Functional Food from Plant Resources; China Agricultural University; Beijing, China
| | - Xudong Zhang
- Department of Nutrition and Health; College of Food Science and Nutritional Engineering; Beijing Key Laboratory of Functional Food from Plant Resources; China Agricultural University; Beijing, China
| | - Ni Chen
- Department of Nutrition and Health; College of Food Science and Nutritional Engineering; Beijing Key Laboratory of Functional Food from Plant Resources; China Agricultural University; Beijing, China
| | - Hongbo Hu
- Department of Nutrition and Health; College of Food Science and Nutritional Engineering; Beijing Key Laboratory of Functional Food from Plant Resources; China Agricultural University; Beijing, China
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Lu C, Luo X, Lu L, Li H, Chen X, Ji Y. Preliminary extraction of tannins by 1-butyl-3-methylimidazole bromide and its subsequent removal from Galla chinensis extract using macroporous resins. J Sep Sci 2013; 36:959-64. [PMID: 23362230 DOI: 10.1002/jssc.201200679] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Revised: 11/21/2012] [Accepted: 11/22/2012] [Indexed: 11/05/2022]
Abstract
In recent years, ionic liquids have become increasingly attractive as 'green solvents' used in the extraction of bioactive compounds from natural plant. However, the separation of ionic liquid from the target compounds was difficult, due to their low vapour pressure and high stabilities. In our study, ionic liquid-based ultrasonic and microwave-assisted extraction was used to obtain the crude tannins, then the macroporous resin adsorption technology was further employed to purify the tannins and remove the ionic liquid from crude extract. The results showed that XDA-6 had higher separation efficiency than other tested resins, and the equilibrium experimental data were well fitted to Langmuir isotherms. Dynamic adsorption and desorption were performed on XDA-6 packed in glass columns to optimise the separation process. The optimum conditions as follows: the ratio of column height to diameter bed was 1:8, flow rate 1 BV/h (bed volume per hour), 85% ethanol was used as eluant while the elution volume was 2 BV. Under the optimised conditions, the adsorption and desoption rate of tannins in XDA-6 were 94.81 and 91.63%, respectively. The content of tannins was increased from 70.24% in Galla chinensis extract to 85.12% with a recovery of 99.06%. The result of ultra-performance liquid chromatography (UPLC)-MS/MS analysis showed that [bmim]Br could be removed from extract.
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Affiliation(s)
- Chunxia Lu
- Analysis and Testing Center, Xinjiang Academy of Agriculture and Reclamation Science, Shihezi, P. R. China.
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26
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Deiab S, Mazzio E, Messeha S, Mack N, Soliman KFA. High-Throughput Screening to Identify Plant Derived Human LDH-A Inhibitors. ACTA ACUST UNITED AC 2013; 3:603-615. [PMID: 24478981 PMCID: PMC3903096 DOI: 10.9734/ejmp/2013/5995] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Aims Lactate dehydrogenase (LDH)-A is highly expressed in diverse human malignant tumors, parallel to aggressive metastatic disease, resistance to radiation/chemotherapy and clinically poor outcome. Although this enzyme constitutes a plausible target in treatment of advanced cancer, there are few known LDH-A inhibitors. Study Design In this work, we utilized a high-throughput enzyme micro-array format to screen and evaluate > 900 commonly used medicinal plant extracts (0.00001-.5 mg/ml) for capacity to inhibit activity of recombinant full length human LDHA; EC .1.1.1.27. Methodology The protein sequence of purified enzyme was confirmed using 1D gel electrophoresis- MALDI-TOF-MS/MS, enzyme activity was validated by oxidation of NADH (500μM) and kinetic inhibition established in the presence of a known inhibitor (Oxalic Acid). Results Of the natural extracts tested, the lowest IC50s [<0.001 mg/ml] were obtained by: Chinese Gallnut (Melaphis chinensis gallnut), Bladderwrack (Fucus vesiculosus), Kelp (Laminaria Japonica) and Babul (Acacia Arabica). Forty-six additional herbs contained significant LDH-A inhibitory properties with IC50s [<0.07 mg/ml], some of which have common names of Arjun, Pipsissewa, Cinnamon, Pink Rose Buds/Petals, Wintergreen, Cat’s Claw, Witch Hazel Root and Rhodiola Root. Conclusion These findings reflect relative potency by rank of commonly used herbs and plants that contain human LDH-A inhibitory properties. Future research will be required to isolate chemical constituents within these plants responsible for LDH-A inhibition and investigate potential therapeutic application.
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Affiliation(s)
- S Deiab
- College of Pharmacy and Pharmaceutical Sciences, Florida A & M University, Tallahassee, Florida 32307, USA
| | - E Mazzio
- College of Pharmacy and Pharmaceutical Sciences, Florida A & M University, Tallahassee, Florida 32307, USA
| | - S Messeha
- College of Pharmacy and Pharmaceutical Sciences, Florida A & M University, Tallahassee, Florida 32307, USA
| | - N Mack
- College of Pharmacy and Pharmaceutical Sciences, Florida A & M University, Tallahassee, Florida 32307, USA
| | - K F A Soliman
- College of Pharmacy and Pharmaceutical Sciences, Florida A & M University, Tallahassee, Florida 32307, USA
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A rapid profiling of gallotannins and flavonoids of the aqueous extract of Rhus coriaria L. by flow injection analysis with high-resolution mass spectrometry assisted with database searching. J Pharm Biomed Anal 2012; 72:202-7. [PMID: 22999301 DOI: 10.1016/j.jpba.2012.08.017] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Revised: 08/16/2012] [Accepted: 08/17/2012] [Indexed: 11/23/2022]
Abstract
Hydrolysable tannins appear to have some extremely important biological roles including antioxidant, antibacterial, anti-inflammatory, anti-hypoglycemic, anti-angiogenic, and anticancer activities. The aim of this work was to set up a flow injection high-resolution mass spectrometric approach combined with database searching to obtain rapidly a profiling of gallotannins and other phenolics in a crude extract from plant tissue. The flow injection analysis (FIA) takes place in an electrospray ionization source of an hybrid orbitrap high resolution mass spectrometry system (ESI-HR-MS/MS(2), resolution 100,000, negative ion mode) and polyphenols are tentatively identified by matching the monoisotopic masses of the spectra with those of polyphenols databases. This leads to the most probable molecular formulas and to the possible structures among those reported in the database. The structures confirmation occurs by the compliance of MS(2) fragments with those of a prediction fragment commercial database. With this method we identified in the aqueous extract of sumac leaves, with a maximum error of 1.7 ppm, a group of ten gallotannins from mono- to deca-galloyl glycosides of the class of hydrolysable tannins and a set of coextracted flavonoid derivatives including myricetin, quercetin-3-O-rhamnoside, myricetin-3-O-glucoside, myricetin-3-O-glucuronide, and myricetin-3-O-rhamnoglucoside. The separation of isomers of gallotannins and flavonoids present in the same extract occurred by high-performance liquid chromatography with electrospray ionization tandem mass spectrometry (HPLC/ESI-HR-MS(2)); this approach allowed the structure resolution of the isobaric flavonoids quercetin-3-O-glucoside and myricetin-3-O-rhamnoside.
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Chen YY, Chou PY, Chien YC, Wu CH, Wu TS, Sheu MJ. Ethanol extracts of fruiting bodies of Antrodia cinnamomea exhibit anti-migration action in human adenocarcinoma CL1-0 cells through the MAPK and PI3K/AKT signaling pathways. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2012; 19:768-778. [PMID: 22464013 DOI: 10.1016/j.phymed.2012.02.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Revised: 01/27/2012] [Accepted: 02/28/2012] [Indexed: 05/31/2023]
Abstract
Cancer metastasis is a primary cause of cancer death. Antrodia cinnamomea (A. cinnamomea), a medicinal mushroom in Taiwan, has been shown antioxidant and anticancer activities. In this study, we first observed that ethanol extract of fruiting bodies of A. cinnamomea (EEAC) exerted a concentration-dependent inhibitory effect on migration and motility of CL1-0 cells in the absence of cytotoxicity. The results of a gelatin zymography assay showed that A. cinnamomea suppressed the activity of matrix metalloproteinase (MMP)-2 and MMP-9 in a concentration-dependent manner. Western blot results demonstrated that treatment with A. cinnamomea decreased the expression of MMP-9 and MMP-2; while the expression of the endogenous inhibitors of these proteins, i.e., tissue inhibitors of MMP (TIMP-1 and TIMP-2) increased. Two major compounds from EEAC codycepin and zhankuic acid A alone and together inhibited MMP-9 and MMP-2 expressions. Further investigation revealed that A. cinnamomea suppressed the phosphorylation of p38, and JNK1/2. A. cinnamomea also suppressed the expressions of PI3K and phosphorylation of AKT. This is the first report confirming the anti-migration activity of this potentially beneficial mushroom against human lung adenocarcinoma CL1-0.
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Affiliation(s)
- Ying-Yi Chen
- School of Pharmacy, China Medical University, 91 Hsueh-Shih Road, Taichung 404, Taiwan
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29
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Ethanol extracts of fruiting bodies of Antrodia cinnamomea suppress CL1-5 human lung adenocarcinoma cells migration by inhibiting matrix metalloproteinase-2/9 through ERK, JNK, p38, and PI3K/Akt signaling pathways. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:378415. [PMID: 22454661 PMCID: PMC3291113 DOI: 10.1155/2012/378415] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 10/25/2011] [Accepted: 10/25/2011] [Indexed: 12/27/2022]
Abstract
Cancer metastasis is a primary cause of cancer death. Antrodia cinnamomea (A. cinnamomea), a medicinal mushroom in Taiwan, has shown antioxidant and anticancer activities. In this study, we first observed that ethanol extract of fruiting bodies of A. cinnamomea (EEAC) exerted a concentration-dependent inhibitory effect on migration and motility of the highly metastatic CL1-5 cells in the absence of cytotoxicity. The results of a gelatin zymography assay showed that A. cinnamomea suppressed the activities of matrix metalloproteinase-(MMP-) 2 and MMP-9 in a concentration-dependent manner. Western blot results demonstrated that treatment with A. cinnamomea decreased the expression of MMP-9 and MMP-2; while the expression of the endogenous inhibitors of these proteins, that is, tissue inhibitors of MMP (TIMP-1 and TIMP-2) increased. Further investigation revealed that A. cinnamomea suppressed the phosphorylation of ERK1/2, p38, and JNK1/2. A. cinnamomea also suppressed the expressions of PI3K and phosphorylation of Akt. Furthermore, treatment of CL1-5 cells with inhibitors specific for PI3K (LY 294002), ERK1/2 (PD98059), JNK (SP600125), and p38 MAPK (SB203580) decreased the expression of MMP-2 and MMP-9. This is the first paper confirming the antimigration activity of this potentially beneficial mushroom against human lung adenocarcinoma CL1-5 cancer cells.
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30
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Sánchez-Tena S, Fernández-Cachón ML, Carreras A, Mateos-Martín ML, Costoya N, Moyer MP, Nuñez MJ, Torres JL, Cascante M. Hamamelitannin from witch hazel (Hamamelis virginiana) displays specific cytotoxic activity against colon cancer cells. JOURNAL OF NATURAL PRODUCTS 2012; 75:26-33. [PMID: 22216935 DOI: 10.1021/np200426k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Hamamelis virginiana (witch hazel) bark is a rich source of condensed and hydrolyzable tannins reported to exert a protective action against colon cancer. The present study characterizes different witch hazel tannins as selective cytotoxic agents against colon cancer. To cover the structural diversity of the tannins that occur in H. virginiana bark, the hydrolyzable tannins, hamamelitannin and pentagalloylglucose, together with a proanthocyanidin-rich fraction (F800H4) were selected for the study. Treatment with these compounds reduced tumor viability and induced apoptosis, necrosis, and S-phase arrest in the cell cycle of HT29 cells, with hamamelitannin being the most efficient. Owing to polyphenol-mediated H(2)O(2) formation in the incubation media, the antiproliferative effect was determined in the presence and absence of catalase to rule out any such interference. The presence of catalase significantly changed the IC(50) only for F800H4. Furthermore, at concentrations that inhibit the growth of HT29 cells by 50%, hamamelitannin had no harmful effects on NCM460 normal colonocytes, whereas pentagalloylglucose inhibited both cancerous and normal cell growth. Using the TNPTM assay, we identified a highly reactive phenolic position in hamamelitannin, which may explain its efficacy at inhibiting colon cancer growth.
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Affiliation(s)
- Susana Sánchez-Tena
- Faculty of Biology, Universitat de Barcelona, IBUB, Unit Associated with CSIC, 08028 Barcelona, Spain
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31
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Ryu HG, Jeong SJ, Kwon HY, Lee HJ, Lee EO, Lee MH, Choi SH, Ahn KS, Kim SH. Penta-O-galloyl-β-D-glucose attenuates cisplatin-induced nephrotoxicity via reactive oxygen species reduction in renal epithelial cells and enhances antitumor activity in Caki-2 renal cancer cells. Toxicol In Vitro 2011; 26:206-14. [PMID: 22172427 DOI: 10.1016/j.tiv.2011.11.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Revised: 09/23/2011] [Accepted: 11/17/2011] [Indexed: 01/26/2023]
Abstract
Cisplatin shows limited therapeutic efficacy due to serious side effects such as nephrotoxicity and hepatotoxicity. In the present study, we demonstrate that 1,2,3,4,6-penta-O-galloyl-β-d-glucose (PGG) has protective effects against cisplatin-induced cytotoxicity and apoptosis in normal human primary renal epithelial cells (HRCs) while showing synergistic effect against cisplatin-induced cell death in human Caki-2 renal cancer cells. PGG significantly blocked cisplatin-mediated cytotoxicity and reduced cisplatin-induced sub-G1 accumulation in HRCs. Consistently, PGG reduced the number of apoptotic cell populations by TdT-mediated dUTP nick end labeling (TUNEL) and Live/Dead assays in cisplatin-treated HRCs. Furthermore, PGG suppressed PARP cleavage and caspase-3 activation, cytochrome c release, up-regulation of bax and p53 in cisplatin-treated HRCs. Moreover, PGG attenuated reactive oxygen species (ROS) production mediated by cisplatin treatment, suggesting that PGG prevented cisplatin-induced apoptosis by inhibiting ROS generation in HRCs. Notably, PGG significantly enhanced cytotoxicity and PARP cleavage in cisplatin-treated Caki-2 renal cancer cells. Combination Index (CI) revealed synergism between PGG and cisplatin in Caki-2 cells. Taken together, our findings suggest the dual effects of PGG as a protective supplement against cisplatin-induced toxicity in normal renal cells and a combination chemotherapeutic drug with cisplatin in renal cancer cells.
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Affiliation(s)
- Ho-Geon Ryu
- College of Oriental Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul 130-701, South Korea
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32
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Yu WS, Jeong SJ, Kim JH, Lee HJ, Song HS, Kim MS, Ko E, Lee HJ, Khil JH, Jang HJ, Kim YC, Bae H, Chen CY, Kim SH. The genome-wide expression profile of 1,2,3,4,6-penta-O-galloyl-β-D-glucose-treated MDA-MB-231 breast cancer cells: molecular target on cancer metabolism. Mol Cells 2011; 32:123-32. [PMID: 21614488 PMCID: PMC3887664 DOI: 10.1007/s10059-011-2254-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Revised: 03/26/2011] [Accepted: 04/28/2011] [Indexed: 12/27/2022] Open
Abstract
1,2,3,4,6-penta-O-galloyl-beta-D-glucose (PGG), a polyphenolic compound isolated from Rhus chinensis Mill. PGG has been known to have anti-tumor, anti-angiogenic and anti-diabetic activities. The present study revealed another underlying molecular target of PGG in MDA-MB-231 breast cancer cells by using Illumina Human Ref-8 expression BeadChip assay. Through the Beadstudio v3 micro assay program to compare the identified genes expressed in PGG-treated MDA-MB-231 cells with untreated control, we found several unique genes that are closely associated with pyruvate metabolism, glycolysis/gluconeogenesis and tyrosine metabolism, including PC, ACSS2, ACACA, ACYP2, ALDH3B1, FBP1, PRMT2 and COMT. Consistent with microarray data, real-time RT-PCR confirmed the significant down-regulation of these genes at mRNA level in PGG-treated MDA-MB-231 cells. Our findings suggest the potential of PGG as anticancer agent for breast cancer cells by targeting cancer metabolism genes.
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Affiliation(s)
- Woo Sik Yu
- Cancer Preventive Material Development Research Center, College of Oriental Medicine, Kyung Hee University, Seoul 130-701, Korea
- These authors contributed equally to this work
| | - Soo-Jin Jeong
- Cancer Preventive Material Development Research Center, College of Oriental Medicine, Kyung Hee University, Seoul 130-701, Korea
- These authors contributed equally to this work
| | - Ji-Hyun Kim
- Cancer Preventive Material Development Research Center, College of Oriental Medicine, Kyung Hee University, Seoul 130-701, Korea
| | - Hyo-Jung Lee
- Cancer Preventive Material Development Research Center, College of Oriental Medicine, Kyung Hee University, Seoul 130-701, Korea
| | - Hyo Sook Song
- Cancer Preventive Material Development Research Center, College of Oriental Medicine, Kyung Hee University, Seoul 130-701, Korea
| | - Min-Seok Kim
- College of Dental Medicine, Tufts University, Boston, USA
| | - Eunjung Ko
- Cancer Preventive Material Development Research Center, College of Oriental Medicine, Kyung Hee University, Seoul 130-701, Korea
| | - Hyo-Jeong Lee
- Cancer Preventive Material Development Research Center, College of Oriental Medicine, Kyung Hee University, Seoul 130-701, Korea
| | - Jae-Ho Khil
- College of Physical Education, Kyung Hee University, Seoul 130-701, Korea
| | - Hyeung-Jin Jang
- Cancer Preventive Material Development Research Center, College of Oriental Medicine, Kyung Hee University, Seoul 130-701, Korea
| | - Young Chul Kim
- Cancer Preventive Material Development Research Center, College of Oriental Medicine, Kyung Hee University, Seoul 130-701, Korea
| | - Hyunsu Bae
- Cancer Preventive Material Development Research Center, College of Oriental Medicine, Kyung Hee University, Seoul 130-701, Korea
| | - Chang Yan Chen
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
| | - Sung-Hoon Kim
- Cancer Preventive Material Development Research Center, College of Oriental Medicine, Kyung Hee University, Seoul 130-701, Korea
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33
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Beretta G, Artali R, Caneva E, Maffei Facino R. Conformation of the tridimensional structure of 1,2,3,4,6-pentagalloyl-β-D-glucopyranose (PGG) by (1)H NMR, NOESY and theoretical study and membrane interaction in a simulated phospholipid bilayer: a first insight. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2011; 49:132-136. [PMID: 21322008 DOI: 10.1002/mrc.2718] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2010] [Revised: 12/01/2010] [Accepted: 12/03/2010] [Indexed: 05/30/2023]
Abstract
1,2,3,4,6-Penta-O-galloyl-β-D-glucopyranose (PGG) is a polyphenolic compound found in substantial amounts in a number of medicinal herbs. We report (i) its conformational analysis by solution NMR and molecular dynamics calculation and (ii) theoretical study of its interaction with a model membrane bilayer. The galloyl groups B and E appear to play important roles in the interaction with the phospholipid bilayer.
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Affiliation(s)
- Giangiacomo Beretta
- Department of Pharmaceutical Sciences 'Pietro Pratesi', Faculty of Pharmacy, University of Milan, Italy.
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34
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Yin S, Dong Y, Li J, Lü J, Hu H. Penta-1,2,3,4,6-O
-galloyl-beta-D
-glucose induces senescence-like terminal S-phase arrest in human hepatoma and breast cancer cells. Mol Carcinog 2011; 50:592-600. [DOI: 10.1002/mc.20743] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 11/16/2010] [Accepted: 01/04/2011] [Indexed: 12/29/2022]
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35
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Lee HJ, Seo NJ, Jeong SJ, Park Y, Jung DB, Koh W, Lee HJ, Lee EO, Ahn KS, Ahn KS, Lü J, Kim SH. Oral administration of penta-O-galloyl-β-D-glucose suppresses triple-negative breast cancer xenograft growth and metastasis in strong association with JAK1-STAT3 inhibition. Carcinogenesis 2011; 32:804-11. [PMID: 21289371 DOI: 10.1093/carcin/bgr015] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
There is an urgent clinical need for chemotherapeutic and chemopreventive drugs for triple-negative breast cancer (TNBCa). Extending on our recent work, we hypothesize that the herbal compound 1,2,3,4,6-penta-O-galloyl-beta-D-glucose (PGG) can inhibit the growth and metastasis of TNBCa xenograft and target Janus-activated kinase (JAK)-signal transducer and activator of transcription (STAT) 3-signaling axis. Daily oral gavage of 10 mg PGG/kg body wt decreased MDA-MB-231 xenograft weight by 49.3% (P < 0.01) at 40 days postinoculation, whereas weekly intraperitoneal injections of Taxol at the same dosage resulted in a 21.4% reduction (P > 0.1). PGG treatment also decreased the incidence of lung metastasis. Immunohistochemical staining detected decreased Ki-67 (proliferation) index and increased terminal deoxynucleotidyl transferase deoxyuridine triphosphate nick end labeling (apoptosis) index in PGG-treated and Taxol-treated xenografts. However, the CD34 (angiogenesis) index was decreased only in PGG-treated xenografts along with decreased phospho-STAT3. In cell culture of MDA-MB-231 cells, PGG decreased pSTAT3 and its downstream target proteins, decreased its upstream kinase pJAK1 and induced the expression of SHP1, a JAK1 upstream tyrosine phosphatase, within as early as 1 h of exposure. The phosphatase inhibitor pervanadate reversed the PGG-induced downregulation of pSTAT3 and caspase activation. Orally administered PGG can inhibit TNBCa growth and metastasis, probably through anti-angiogenesis, antiproliferation and apoptosis induction. Mechanistically, PGG-induced inhibition of JAK1-STAT3 axis may contribute to the observed in vivo efficacy and the effects on the cellular processes.
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Affiliation(s)
- Hyo-Jeong Lee
- College of Oriental Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
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Djakpo O, Yao W. Rhus chinensis and Galla Chinensis--folklore to modern evidence: review. Phytother Res 2010; 24:1739-47. [PMID: 20564459 PMCID: PMC7167973 DOI: 10.1002/ptr.3215] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Revised: 03/29/2010] [Accepted: 04/11/2010] [Indexed: 11/10/2022]
Abstract
The species Rhus chinensis Mill. (Anacardiaceae) is an important representative of the genus Rhus, which contains over 250 individual species found in temperate and tropical regions worldwide. Rhus chinensis has long been used by folk medicine practitioners in Asia. Leaves, roots, stem, bark, fruit and particularly the galls on Rhus chinensis leaves, Galla chinensis, are recognized to have preventative and therapeutic effects on different ailments (such as diarrhea, dysentery, rectal and intestinal cancer, diabetes mellitus, sepsis, oral diseases and inflammation). However, it is critical to separate evidence from anecdote. Fortunately, recent scientific research has revealed that Rhus chinensis compounds possess strong antiviral, antibacterial, anticancer, hepatoprotective, antidiarrheal and antioxidant activities. Moreover, compounds isolated from the stem of Rhus chinensis significantly suppressed HIV-1 activity in vitro. Compounds from this plant were also found to inhibit enamel demineralization in vitro and enhance remineralization of dental enamel with fluoride. This review highlights claims from traditional and tribal medicinal lore and makes a contemporary summary of phytochemical, biological and pharmacological findings on this plant material. It aims to show that the pharmaceutical potential of this plant deserves closer attention.
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Affiliation(s)
- Odilon Djakpo
- School of Food Science and Technology, Jiangnan University, Food Safety and Quality Control Laboratory, Wuxi, 214122, Jiangsu Province, P.R. China.
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Li L, Shaik AA, Zhang J, Nhkata K, Wang L, Zhang Y, Xing C, Kim SH, Lü J. Preparation of penta-O-galloyl-β-D-glucose from tannic acid and plasma pharmacokinetic analyses by liquid-liquid extraction and reverse-phase HPLC. J Pharm Biomed Anal 2010; 54:545-50. [PMID: 20970943 DOI: 10.1016/j.jpba.2010.09.028] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Revised: 09/15/2010] [Accepted: 09/20/2010] [Indexed: 11/19/2022]
Abstract
The gallotannin penta-O-galloyl-beta-D-glucose (PGG) has many biological activities including in vivo anti-cancer efficacy. We present in this paper a scaled-up protocol for its preparation in high purity from tannic acid by acidic methanolysis with typical yield of 15%. We also describe a method for the analysis of PGG in mouse plasma by HPLC and its application in preliminary pharmacokinetic studies. A liquid-liquid extraction (LLE) protocol was optimized for the extraction of PGG from mouse plasma. The extraction efficiency for PGG at 1 μg/mL in mouse plasma was 70.0±1.3% (n=5). The limit of detection (LOD) for PGG was approximately 0.2 μg/mL. Preliminary pharmacokinetic parameters of PGG following a single i.p. injection with 5% ethanol/saline vehicle in mice were established. The peak plasma PGG concentrations (C(max)) were approximately 3-4 μM at a dose of 0.5 mg per mouse (∼20 mg/kg) at 2 h post-injection (T(max)).
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Affiliation(s)
- Li Li
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, MN 55912, USA
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Huang GJ, Yang CM, Chang YS, Amagaya S, Wang HC, Hou WC, Huang SS, Hu ML. Hispolon suppresses SK-Hep1 human hepatoma cell metastasis by inhibiting matrix metalloproteinase-2/9 and urokinase-plasminogen activator through the PI3K/Akt and ERK signaling pathways. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:9468-75. [PMID: 20698552 DOI: 10.1021/jf101508r] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Cancer metastasis is a primary cause of cancer death. Hispolon is an active phenolic compound of Phellinus linteus, a mushroom that has recently been shown to have antioxidant and anticancer activities. In this study, we first observed that hispolon exerted a dose-dependent inhibitory effect on invasion and motility, but not on adhesion, of the highly metastatic SK-Hep1 cells in the absence of cytotoxicity. Mechanistically, hispolon decreased the expression of matrix metalloproteinase-2 (MMP-2), matrix metalloproteinase-9 (MMP-9), and urokinase-plasminogen activator (uPA) in a concentration-dependent manner. Hispolon also inhibited phosphorylation of extracellular signaling-regulating kinase1/2 (ERK1/2), phosphatidylinositol-3-kinase/serine/threonine protein kinase (or protein kinase B (PI3K/Akt), and focal adhesion kinase (FAK). Furthermore, treatment of SK-Hep1 cells with an inhibitor specific for ERK1/2 (PD98256) decreased the expression of MMP-2, and MMP-9. These results demonstrate that hispolon can inhibit the metastasis of SK-Hep1 cells by reduced expression of MMP-2, MMP-9, and uPA through the suppression of the FAK signaling pathway and of the activity of PI3K/Akt and Ras homologue gene family, member A (RhoA). These findings suggest that hispolon may be used as an antimetastatic agent.
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Affiliation(s)
- Guan-Jhong Huang
- Institute of Chinese Pharmaceutical Sciences, College of Pharmacy, China Medical University, 91 Hsueh-Shih Road, Taichung City 404, Taiwan.
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Chai Y, Lee HJ, Shaik AA, Nkhata K, Xing C, Zhang J, Jeong SJ, Kim SH, Lu J. Penta-O-galloyl-beta-D-glucose induces G1 arrest and DNA replicative S-phase arrest independently of cyclin-dependent kinase inhibitor 1A, cyclin-dependent kinase inhibitor 1B and P53 in human breast cancer cells and is orally active against triple negative xenograft growth. Breast Cancer Res 2010; 12:R67. [PMID: 20809980 PMCID: PMC3096953 DOI: 10.1186/bcr2634] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2010] [Accepted: 09/01/2010] [Indexed: 11/23/2022] Open
Abstract
Introduction Natural herbal compounds with novel actions different from existing breast cancer (BCa) treatment modalities are attractive for improving therapeutic efficacy and safety. We have recently shown that penta-1,2,3,4,6-O-galloyl-β-D-glucose (PGG) induced S-phase arrest in prostate cancer (PCa) cells through inhibiting DNA replicative synthesis and G1 arrest, in addition to inducing cell death at higher levels of exposure. We and others have shown that PGG through intraperitoneal (i.p.) injection exerts a strong in vivo growth suppression of human PCa xenograft models in athymic nude mice. This study aims to test the hypothesis that the novel targeting actions of PGG are applicable to BCa cells, especially those lacking proven drugable targets. Methods Mono-layer cell culture models of p53-wild type estrogen receptor (ER)-dependent MCF-7 BCa cells and p53-mutant ER-/progesterone receptor (PR)- and Her2-regular (triple-negative) MDA-MB-231 BCa were exposed to PGG for a comprehensive investigation of cellular consequences and molecular targets/mediators. To test the in vivo efficacy, female athymic mice inoculated with MDA-MB-231 xenograft were treated with 20 mg PGG/kg body weight by daily gavage starting 4 days after cancer cell inoculation. Results Exposure to PGG induced S-phase arrest in both cell lines as indicated by the lack of 5-bromo2'-deoxy-uridine (BrdU) incorporation into S-phase cells as well as G1 arrest. Higher levels of PGG induced more caspase-mediated apoptosis in MCF-7, in strong association with induction of P53 Ser15 phosphorylation, than in MDA-MB-231 cells. The cell cycle arrests were achieved without an induction of cyclin dependent kinase (CDK) inhibitory proteins P21Cip1 and P27Kip1. PGG treatment led to decreased cyclin D1 in both cell lines and over-expressing cyclin D1 attenuated G1 arrest and hastened S arrest. In serum-starvation synchronized MCF-7 cells, down-regulation of cyclin D1 was associated with de-phosphorylation of retinoblastoma (Rb) protein by PGG shortly before G1-S transition. In vivo, oral administration of PGG led to a greater than 60% inhibition of MDA-MB231 xenograft growth without adverse effect on host body weight. Conclusions Our in vitro and in vivo data support PGG as a potential drug candidate for breast cancer with novel targeting actions, especially for a triple negative BCa xenograft model.
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Affiliation(s)
- Yubo Chai
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
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40
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Lackey DE, Hoag KA. Vitamin A upregulates matrix metalloproteinase-9 activity by murine myeloid dendritic cells through a nonclassical transcriptional mechanism. J Nutr 2010; 140:1502-8. [PMID: 20534877 DOI: 10.3945/jn.110.122556] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Myeloid dendritic cells (DC) are specialized antigen-presenting immune cells. Upon activation in peripheral tissues, DC migrate to lymph nodes to activate T lymphocytes. Matrix metalloproteinase (MMP)-9 is a gelatinase essential for DC migration. We have previously shown that all-trans retinoic acid (atRA), a bioactive metabolite of vitamin A, significantly augmented DC MMP-9 mRNA and protein production. We investigated the mechanisms by which atRA increased MMP-9 activity in vitro. Mouse myeloid DC cultured with atRA demonstrated increased gelatinase activity compared with cells cultured with retinoic acid receptor (RAR)-alpha antagonist. Adding MMP-9 inhibitor significantly blocked DC gelatinase activity and increased adherence of DC in a dose-dependent manner. AtRA-induced Mmp-9 gene expression in DC was blocked by transcriptional inhibition. Because the Mmp-9 promoter contains no canonical retinoic acid response element (RARE), we performed additional studies to determine how atRA regulated DC Mmp-9 transcription. Electrophoretic mobility shift assays for the consensus Sp1, activating protein-1, and nuclear factor-kappaB binding sites located in the Mmp-9 promoter did not indicate greater nuclear protein binding in response to atRA. Chromatin immunoprecipitation assays indicated RARalpha and histone acetyltransferase p300 recruitment to, and acetylation of, histone H3 at the Mmp-9 promoter was greater after atRA treatment. These data suggest that atRA regulated DC adhesion in vitro partly through MMP-9 gelatinase activity. Mmp-9 expression was enhanced through a transcriptional mechanism involving greater RARalpha promoter binding, recruitment of p300, and subsequent histone H3 acetylation, despite the absence of a consensus RARE.
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Affiliation(s)
- Denise E Lackey
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA
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Mizushina Y, Zhang J, Pugliese A, Kim SH, Lü J. Anti-cancer gallotannin penta-O-galloyl-beta-D-glucose is a nanomolar inhibitor of select mammalian DNA polymerases. Biochem Pharmacol 2010; 80:1125-32. [PMID: 20599777 DOI: 10.1016/j.bcp.2010.06.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2010] [Revised: 06/18/2010] [Accepted: 06/21/2010] [Indexed: 11/16/2022]
Abstract
Penta-1,2,3,4,6-O-galloyl-beta-D-glucose (PGG) has been shown by us and others to inhibit the in vivo growth of human prostate cancer (PCa) xenografts in athymic nude mice and mouse lung cancer allograft in syngenic mice without evident adverse effect on their body weight. We observed a rapid inhibition of DNA synthesis in S-phase cells in PGG-exposed cancer cells and in PGG-treated isolated nuclei. The purpose of the present study was to test the hypothesis that PGG inhibits DNA replicative synthesis through a direct inhibition of one or more DNA polymerases (pols). Using purified pols, we show that PGG exhibited a selective inhibition against the activities of B-family replicative pols (alpha, delta and epsilon) and Y-family (eta, iota and kappa) of bypass synthesis pols, and the inhibitory effect of PGG on pol alpha was the strongest with IC(50) value of 13 nM. PGG also inhibited pol beta, but the potency was an order of magnitude less than against pol alpha. PGG inhibition of pol alpha and kappa activity was non-competitive with respect to the DNA template-primer and the dNTP substrate; whereas it inhibited pol beta competitively. Docking simulation on pol beta, which is the only mammalian pol with solved crystal structure, suggests several favorable interactions with the catalytic pocket/binding site for the incoming dNTP. These results support PGG as a novel inhibitor of select families of mammalian pols by distinct mechanisms, and suggest that the potent pol inhibition may contribute to its anti-cancer efficacy.
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Affiliation(s)
- Yoshiyuki Mizushina
- Laboratory of Food & Nutritional Sciences, Department of Nutritional Science, Kobe-Gakuin University, Kobe, Japan.
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Lin VCH, Chou CH, Lin YC, Lin JN, Yu CC, Tang CH, Lin HY, Way TD. Osthole suppresses fatty acid synthase expression in HER2-overexpressing breast cancer cells through modulating Akt/mTOR pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:4786-4793. [PMID: 20218616 DOI: 10.1021/jf100352c] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
While fatty acid synthase (FASN) has been shown to be expressed in many human solid tumors, FASN has also been identified in preneoplastic lesions. HER2, which has also been identified in preneoplastic breast lesions, has been shown to upregulate FASN expression. Osthole, an active constituent isolated from the fruit of Cnidium monnieri (L.) Cusson, a traditional Chinese medicine, was found to be effective in suppressing FASN expression in HER2-overexpressing breast cells. Osthole preferentially inhibited proliferation and induced apoptosis in HER2-overexpressing cancer cells. Moreover, osthole inhibited the phosphorylation of Akt and mTOR. The use of Akt-overexpression revealed that the modulation of Akt and mTOR was required for osthole-induced FASN suppression. Finally, we showed that osthole could enhance paclitaxel-induced cytotoxicity in HER2-overexpressing cancer cells. These results suggested that osthole has the potential to advance as chemopreventive or chemotherapeutic agent for cancers that overexpress HER2.
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Affiliation(s)
- Victor Chia-Hsiang Lin
- Department of Urology, E-Da Hospital, Department of Nursing, I-Shou University, Kaohsiung, Taiwan
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Way TD, Lee JC, Kuo DH, Fan LL, Huang CH, Lin HY, Shieh PC, Kuo PT, Liao CF, Liu H, Kao JY. Inhibition of epidermal growth factor receptor signaling by Saussurea involucrata, a rare traditional Chinese medicinal herb, in human hormone-resistant prostate cancer PC-3 cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:3356-3365. [PMID: 20166659 DOI: 10.1021/jf903793p] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Prostate carcinoma is the most frequently diagnosed malignancy and the second leading cause of death of men in the United States. To date, no effective therapeutic treatment allows abrogation of the progression of prostate cancer to more invasive forms. In this study, we identified Saussurea involucrata Kar. et Kir., a rare traditional Chinese medicinal herb, as a potential agent for androgen-independent prostate cancer patients and investigated its biological mechanism as an antineoplastic agent. S. involucrata caused a concentration- and time-dependent inhibition of cell proliferation in human hormone-resistant prostate cancer PC-3 cells. Moreover, in vitro studies in a panel of several types of human cancer cell lines revealed that S. involucrata inhibited cell proliferation with high potency. To evaluate the bioactive compounds, we successively extracted the S. involucrata with fractions of methanol (SI-1), ethyl acetate (SI-2), n-butanol (SI-3), and water (SI-4). Among these extracts, SI-2 contains the most effective bioactivity. SI-2 treatment resulted in significant time-dependent growth inhibition together with G1 phase cell cycle arrest and apoptosis in PC3 cells. In addition, SI-2 treatment strongly induced p21WAF1/CIP and p27KIP1 expression, independent of the p53 pathway, and downregulated expression of cyclin D1 and cyclin-dependent kinase 4 (CDK4). SI-2 treatment increased levels of Bax, cytochrome c, activated caspase-3, and active caspase-9 and decreased Bcl-2 expression level. One of the major targets for the therapy in prostate cancer can be epidermal growth factor receptor (EGFR). SI-2 markedly reduced phosphorylation of EGFR and inhibited activation of AKT and STAT3. Moreover, p.o. administration of SI-2 induced a dose-dependent inhibition of PC-3 tumor growth in vivo. In summary, our study identifies S. involucrata as an effective inhibitor of EGFR signaling in human hormone-resistant prostate cancer PC-3 cells. We suggest that S. involucrata could be developed as an agent for the management of EGFR-positive human cancers.
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Affiliation(s)
- Tzong-Der Way
- Department of Biological Science and Technology, College of Life Sciences, China Medical University, Taichung, Taiwan
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Hu H, Chai Y, Wang L, Zhang J, Lee HJ, Kim SH, Lü J. Pentagalloylglucose induces autophagy and caspase-independent programmed deaths in human PC-3 and mouse TRAMP-C2 prostate cancer cells. Mol Cancer Ther 2010; 8:2833-43. [PMID: 19825802 DOI: 10.1158/1535-7163.mct-09-0288] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Penta-1,2,3,4,6-O-galloyl-beta-d-glucose (PGG) suppresses the in vivo growth of human DU145 and PC-3 prostate cancer xenografts in nude mice, suggesting potential utility as a prostate cancer chemotherapeutic or chemopreventive agent. Our earlier work implicates caspase-mediated apoptosis in DU145 and LNCaP prostate cancer cells as one mechanism for the anticancer activity. We show here that, in the more aggressive PC-3 prostate cancer cell line, PGG induced programmed cell deaths lacking the typical caspase-mediated apoptotic morphology and biochemical changes. In contrast, PGG induced patent features of autophagy, including formation of autophagosomes and lipid modification of light chain 3 after 48 hours of PGG exposure. The "autophagic" responses were also observed in the murine TRAMP-C2 cells. Caspase inhibition exacerbated PGG-induced overall death. As for molecular changes, we observed a rapid inhibition of the phosphorylation of mammalian target of rapamycin-downstream targets S6K and 4EBP1 by PGG in PC-3 and TRAMP-C2 cells but not that of mammalian target of rapamycin itself, along with increased AKT phosphorylation. Whereas the inhibition of phosphatidylinositol 3-kinase increased PGG-induced apoptosis and autophagy, experiments with pharmacologic inducer or inhibitor of autophagy or by knocking down autophagy mediator Beclin-1 showed that autophagy provided survival signaling that suppressed caspase-mediated apoptosis. Knocking down of death receptor-interacting protein 1 kinase increased overall death without changing light chain 3-II or caspase activation, thus not supporting death receptor-interacting protein 1-necroptosis for PGG-induction of autophagy or other programmed cell death. Furthermore, PGG-treated PC-3 cells lost clonogenic ability. The induction by PGG of caspase-independent programmed cell death in aggressive prostate cancer cell lines supports testing its merit as a potential drug candidate for therapy of caspase-resistant recurrent prostate cancer.
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Affiliation(s)
- Hongbo Hu
- Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, MN 55912, USA
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Zhang J, Li L, Kim SH, Hagerman AE, Lü J. Anti-cancer, anti-diabetic and other pharmacologic and biological activities of penta-galloyl-glucose. Pharm Res 2009; 26:2066-80. [PMID: 19575286 PMCID: PMC2822717 DOI: 10.1007/s11095-009-9932-0] [Citation(s) in RCA: 202] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2009] [Accepted: 06/17/2009] [Indexed: 12/22/2022]
Abstract
1, 2, 3, 4, 6-penta-O-galloyl-beta-D-glucose (PGG) is a polyphenolic compound highly enriched in a number of medicinal herbals. Several in vitro and a handful of in vivo studies have shown that PGG exhibits multiple biological activities which implicate a great potential for PGG in the therapy and prevention of several major diseases including cancer and diabetes. Chemically and functionally, PGG appears to be distinct from its constituent gallic acid or tea polyphenols. For anti-cancer activity, three published in vivo preclinical cancer model studies with PGG support promising efficacy to selectively inhibit malignancy without host toxicity. Potential mechanisms include anti-angiogenesis; anti-proliferative actions through inhibition of DNA replicative synthesis, S-phase arrest, and G(1) arrest; induction of apoptosis; anti-inflammation; and anti-oxidation. Putative molecular targets include p53, Stat3, Cox-2, VEGFR1, AP-1, SP-1, Nrf-2, and MMP-9. For anti-diabetic activity, PGG and analogues appear to improve glucose uptake. However, very little is known about the absorption, pharmacokinetics, and metabolism of PGG, or its toxicity profile. The lack of a large quantity of highly pure PGG has been a bottleneck limiting in vivo validation of cancer preventive and therapeutic efficacies in clinically relevant models.
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Affiliation(s)
- Jinhui Zhang
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, MN 55912, USA
| | - Li Li
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, MN 55912, USA
| | - Sung-Hoon Kim
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, MN 55912, USA
- Cancer Preventive Material Development Research Center and Institute, College of Oriental Medicine, Kyunghee University, Republic of Korea
| | - Ann E. Hagerman
- Department of Chemistry & Biochemistry, Miami University, Oxford OH 45056
| | - Junxuan Lü
- The Hormel Institute, University of Minnesota, 801 16th Avenue NE, Austin, MN 55912, USA
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